Opened a pr. But keep in mind that if you’re aiming to share this deck with folks who’re still on old anki versions, it might be good to at least move src into the <audio> tag itself, i.e.
from <audio controls=""><source src="_约_sentence0.mp3"></audio>
to <audio controls="" src="_约_sentence0.mp3"></audio>
That way you can avoid autoplay, drop the initial _ in the filename (which was a media check hack), resolve your issue and ensure no one else using your deck is hit by it